CN102382548A - Solvent-free epoxy coating for inner wall of petroleum storage tank and preparation method - Google Patents

Solvent-free epoxy coating for inner wall of petroleum storage tank and preparation method Download PDF

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Publication number
CN102382548A
CN102382548A CN2011102485728A CN201110248572A CN102382548A CN 102382548 A CN102382548 A CN 102382548A CN 2011102485728 A CN2011102485728 A CN 2011102485728A CN 201110248572 A CN201110248572 A CN 201110248572A CN 102382548 A CN102382548 A CN 102382548A
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liquid
coating
storage tank
order
proportion
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CN2011102485728A
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CN102382548B (en
Inventor
王志涛
韩文礼
林竹
范云鹏
张盈盈
周冰
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China National Petroleum Corp
CNPC Research Institute of Engineering Technology
CNPC Engineering Technology Research Institute Co Ltd
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China National Petroleum Corp
CNPC Engineering Technology Research Institute Co Ltd
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Abstract

The invention relates to a solvent-free epoxy coating for the inner wall of a petroleum storage tank and a preparation method. Solution A comprises E-51 epoxy resin, butyl glycidyl ether, KH-560 silane coupling agent, ALCOPHOR827 anti-corrosion auxiliary agent, BYK-085 flatting agent, Efka-722 defoamer, 400 mesh rutile type titanium white, 325 mesh baryte powder, 400 mesh talcum powder, carbon black and 881-B organic bentonite. Solution B comprises polyamide EU8235 epoxy hardener, dimethylbenzene and normal butanol. The weight percent of the solution A is 80% to 90%. The solvent-free epoxy coating is safe and environment friendly, the coating volume shrinkage is 1.15% to 1.5%, the pull-off adhesion is 16.5MPa to 20.0MPa, a chemical media resistance 90d paint film is in good condition, and a salt spray resistance 3000h paint film is in good condition. With the adoption of the solvent-free epoxy coating, corrosion of the storage tank can be greatly reduced, and the service life of the storage tank can be greatly prolonged.

Description

The petroleum storage tank inwall is with solventless epoxy coating and method of manufacture
Technical field
The present invention relates to a kind of solventless epoxy coating and method of manufacture, be applicable to the inner wall anti-corrosive of petroleum storage tank.
Background technology
Existing petroleum storage tank inner wall anti-corrosive adopts solvent-borne type anticorrosive coating (volumetric shrinkage is 2%～3%) more, and its weak point is that the volatilization of solvent makes coating occur defectives such as pin hole easily on the one hand, and coating antiseptic erosion performance can't effectively be guaranteed; Can cause the environmental pollution and the wasting of resources on the other hand, and poison bigger operating personnel's health; Exist when under the storage tank closed environment, constructing in addition and dodge quick-fried danger.
Summary of the invention
The purpose of this invention is to provide a kind of solventless epoxy coating and method of manufacture.Coating has good application property and Safety and Environmental Protection, and coating has smaller volume shrinking percentage and good corrosion prevention performance.Guarantee the work-ing life of storage tank, solve the safety and environmental protection problem of solvent-borne type anticorrosive coating.
The technical scheme that the present invention adopts is:
One, the raw material of solventless epoxy coating and prescription
Raw material comprises:
1, E-51 epoxy resin
The chief editor of coating process editorial committee, coating process (third edition) first volume, Chemical Industry Press, 1997, the 631 pages.
Character: transparent liquid, do not have obvious mechanical impurity, oxirane value 0.48～0.54eq/100g.
Purposes: be used as film-forming resin.
Factory: Jiangsu three wood
2, butylglycidyl ether
The chief editor of coating process editorial committee, coating process (third edition) first volume, Chemical Industry Press, 1997, the 682 pages.
Character: colourless transparent liquid, oxirane value 0.65eq/100g.
Purposes: reduce dope viscosity.
Factory: the prosperous Dehua worker in Yueyang.
3, KH-560 silane coupling agent
The Guo Shujing chief editor, domestic and international coatings additive(s) kind handbook, Chemical Industry Press, 1999, the 6 pages.
Character: light yellow liquid, specific density 1.065～1.069.
Purposes: coupling is built bridge, and improves paint machine performance, bonding ability, water resistance.
Factory: chemical plant, Gaizhou City.
4, ALCOPHOR827 protection against corrosion auxiliary agent
The Guo Shujing chief editor, domestic and international coatings additive(s) kind handbook, Chemical Industry Press, 1999, the 368 pages.
Character: white powder, bulk density 135～150g/L, particle diameter＜16 μ m.
Purposes: improve the coating antiseptic performance.
Factory: Henkel Corp..
5, BYK-085 flow agent
The Guo Shujing chief editor, domestic and international coatings additive(s) kind handbook, Chemical Industry Press, 1999, the 605 pages.
Character: methyl alkyl ZGK 5, density (20 ℃) 0.91g/cm 3
Purposes: levelling.
Factory: German Bi Ke chemical company.
6, Efka-722 skimmer
The Guo Shujing chief editor, domestic and international coatings additive(s) kind handbook, Chemical Industry Press, 1999, the 152 pages.
Character: acetate methoxyl group propyl ester/korenyl.
Purposes: froth breaking.
Factory: Dutch EFKA auxiliary agent company.
7, Rutile type Titanium Dioxide (400 order)
The chief editor of coating process editorial committee, coating process (third edition) first volume, Chemical Industry Press, 1997, the 30 pages.
Character: specific refractory power 2.74, specific density 4.2～4.3.
Purposes: white pigment.
Factory: Nanjing Titanium Dioxide Chemical Co., Ltd..
8, ground barium sulfate (325 order)
The chief editor of coating process editorial committee, coating process (third edition) first volume, Chemical Industry Press, 1997, the 50 pages.
Character: fine and close white powder, density 4.3～4.5g/cm 3
Purposes: improve the paint flow levelling, increase hardness of paint film and wear resistance.
Factory: Yidu City Austria reaches chemical industry ltd.
9, talcum powder (400 order)
The chief editor of coating process editorial committee, coating process (third edition) first volume, Chemical Industry Press, 1997, the 49 pages.
10, carbon black
The chief editor of coating process editorial committee, coating process (third edition) first volume, Chemical Industry Press, 1997, the 32 pages.
11,881-B organobentonite
The chief editor of coating process editorial committee, coating process (third edition) first volume, Chemical Industry Press, 1997, the 137 pages.
12, polymeric amide EU8235 epoxy hardener
The chief editor of coating process editorial committee, coating process (third edition) first volume, Chemical Industry Press, 1997, the 646 pages.
Purposes: solidifying agent.
Factory: the female Industrial Co., Ltd. of Shanghai moral.
13, YLENE (technical pure)
14, propyl carbinol (technical pure)
Each weight percentages of components of solventless epoxy coating is:
1, A liquid (each weight percentages of components sum is 100%):
1) E-51 epoxy resin: 45～55%;
2) butylglycidyl ether: 5～10%;
3) KH-560 silane coupling agent: 0.25～0.4%;
4) ALCOPHOR827 protection against corrosion auxiliary agent: 0.8～1.5%;
5) BYK-085 flow agent: 0.04～0.3%;
6) Efka-722 skimmer: 0.4～1.2%;
7) Rutile type Titanium Dioxide (400 order): 5～10%;
8) ground barium sulfate (325 order): 15～20%;
9) talcum powder (400 order): 15～20%;
10) carbon black: 0.1～0.5%;
11) 881-B organobentonite: 0.1～1%.
2, B liquid (each weight percentages of components sum is 100%):
1) polymeric amide EU8235 epoxy hardener: 75～85%;
2) YLENE: 10～15%;
3) propyl carbinol: 5～10%.
During use, A liquid and B liquid are mixed coating, wherein the weight percent of A liquid in coating is: 80～90%.
Two, the preparation method of solventless epoxy coating
Major equipment:
Impeller, sand mill.
Working method:
Add E-51 epoxy resin and butylglycidyl ether in the container in proportion; Mix; Under agitation add KH-560 silane coupling agent, ALCOPHOR827 protection against corrosion auxiliary agent, BYK-085 flow agent, Efka-722 skimmer then successively in proportion; Mix; Then under agitation add Rutile type Titanium Dioxide (400 order) successively in proportion, ground barium sulfate (325 order), talcum powder (400 order), carbon black, 881-B organobentonite are promptly processed the A liquid in this coating with grinding 0.5h with sand mill behind the impeller high-speed stirring 0.5h; Polymeric amide EU8235 epoxy hardener, YLENE and propyl carbinol are added in another container in proportion, mix the B liquid of promptly processing in this coating with impeller.
Three, the method for use of solventless epoxy coating
During use, A and B liquid are mixed in proportion and stirs, process solventless epoxy coating, in 30 minutes, workpiece is carried out the airless spraying construction.
Beneficial effect of the present invention
Coating has good application property and Safety and Environmental Protection.Coating volumetric shrinkage 1.15%～1.50% draws back method sticking power 16.5MPa～20.0MPa, resistant to chemical media property (10%H 2SO 4, 10%NaOH, 10%NaCl solution, normal temperature) the 90d paint film is intact, salt spray resistance 3000h paint film is intact.The inner wall anti-corrosive that can be used for crude oil, sewage storage tank can reduce the storage tank corrosion, the work-ing life of improving storage tank significantly.
Embodiment
Embodiment 1: solventless epoxy coating, and each weight percentages of components is:
A liquid:
E-51 epoxy resin: 51.5%;
Butylglycidyl ether: 5.5%;
KH-560 silane coupling agent 0.28%;
ALCOPHOR827 protection against corrosion auxiliary agent 0.9%;
BYK-085 flow agent 0.08%;
Efka-722 skimmer 0.6%;
Rutile type Titanium Dioxide (400 order): 7.5%;
Ground barium sulfate (325 order): 16.5%;
Talcum powder (400 order): 16.5%;
Carbon black: 0.50%;
881-B organobentonite: 0.14%.
B liquid:
Polymeric amide EU8235 epoxy hardener: 81%;
YLENE: 12%;
Propyl carbinol: 7%.
The weight percent of A liquid in coating is 82%.
The preparation method is:
Add E-51 epoxy resin and butylglycidyl ether in the container in proportion; Mix; Under agitation add KH-560 silane coupling agent, ALCOPHOR827 protection against corrosion auxiliary agent, BYK-085 flow agent, Efka-722 skimmer then successively in proportion; Mix; Then under agitation add Rutile type Titanium Dioxide (400 order) successively in proportion, ground barium sulfate (325 order), talcum powder (400 order), carbon black, 881-B organobentonite are promptly processed the A liquid in this coating with grinding 0.5h with sand mill behind the impeller high-speed stirring 0.5h; Polymeric amide EU8235 epoxy hardener, YLENE and propyl carbinol are added in another container in proportion, mix the B liquid of promptly processing in this coating with impeller.During use, A and B liquid mixed in proportion process solventless epoxy coating, solidify to form coating through normal temperature.
Effect: coating volumetric shrinkage 1.18%, draw back method sticking power 18.4MPa, resistant to chemical media property (10%H 2SO 4, 10%NaOH, 10%NaCl solution, normal temperature) the 90d paint film is intact, salt spray resistance 3000h paint film is intact.
Embodiment 2: solventless epoxy coating, and each weight percentages of components is:
A liquid:
E-51 epoxy resin: 53.5%;
Butylglycidyl ether: 5.6%;
KH-560 silane coupling agent 0.32%;
ALCOPHOR827 protection against corrosion auxiliary agent 1.1%;
BYK-085 flow agent 0.1%;
Efka-722 skimmer 0.5%;
Rutile type Titanium Dioxide (400 order): 6%;
Ground barium sulfate (325 order): 16%;
Talcum powder (400 order): 16%;
Carbon black: 0.28%;
881-B organobentonite: 0.6%.
B liquid:
Polymeric amide EU8235 epoxy hardener: 80%;
YLENE: 13.5%;
Propyl carbinol: 6.5%.
The weight percent of A liquid in coating is 84%.
The preparation method of embodiment 2 solventless epoxy coatings is identical with embodiment 1.
Effect: coating volumetric shrinkage 1.22%, draw back method sticking power 17.9MPa, resistant to chemical media property (10%H 2SO 4, 10%NaOH, 10%NaCl solution, normal temperature) the 90d paint film is intact, salt spray resistance 3000h paint film is intact.
Embodiment 3: solventless epoxy coating, and each weight percentages of components is:
A liquid:
E-51 epoxy resin: 47.5%;
Butylglycidyl ether: 6.5%;
KH-560 silane coupling agent 0.34%;
ALCOPHOR827 protection against corrosion auxiliary agent 1.2%;
BYK-085 flow agent 0.16%;
Efka-722 skimmer 0.9%;
Rutile type Titanium Dioxide (400 order): 8%;
Ground barium sulfate (325 order): 16.5%;
Talcum powder (400 order): 18%;
Carbon black: 0.2%;
881-B organobentonite: 0.7%.
B liquid:
Polymeric amide EU8235 epoxy hardener: 83%;
YLENE: 11.5%;
Propyl carbinol: 5.5%.
The weight percent of A liquid in coating is 81%.
The preparation method of embodiment 3 solventless epoxy coatings is identical with embodiment 1.
Effect: coating volumetric shrinkage 1.14%, draw back method sticking power 19.8MPa, resistant to chemical media property (10%H 2SO 4, 10%NaOH, 10%NaCl solution, normal temperature) the 90d paint film is intact, salt spray resistance 3000h paint film is intact.
Embodiment 4: solventless epoxy coating, and each weight percentages of components is:
A liquid:
E-51 epoxy resin: 53%;
Butylglycidyl ether: 5.5%;
KH-560 silane coupling agent 0.3%;
ALCOPHOR827 protection against corrosion auxiliary agent 1.4%;
BYK-085 flow agent 0.2%;
Efka-722 skimmer 1.1%;
Rutile type Titanium Dioxide (400 order): 5.5%;
Ground barium sulfate (325 order): 16%;
Talcum powder (400 order): 16%;
Carbon black: 0.3%;
881-B organobentonite: 0.7%.
B liquid:
Polymeric amide EU8235 epoxy hardener: 84.5%;
YLENE: 10.5%;
Propyl carbinol: 5%.
The weight percent of A liquid in coating is 88%.
The preparation method of embodiment 4 solventless epoxy coatings is identical with embodiment 1.
Effect: coating volumetric shrinkage 1.26%, draw back method sticking power 17.0MPa, resistant to chemical media property (10%H 28O 4, 10%NaOH, 10%NaCl solution, normal temperature) the 90d paint film is intact, salt spray resistance 3000h paint film is intact.

Claims (2)

1. a petroleum storage tank inwall is used solventless epoxy coating, it is characterized in that forming by A liquid and B liquid, wherein:
Each weight percentages of components is in the A liquid:
E-51 epoxy resin 45～55%;
Butylglycidyl ether 5～10%;
KH-560 silane coupling agent 0.25～0.4%;
ALCOPHOR827 protection against corrosion auxiliary agent 0.8～1.5%;
BYK-085 flow agent 0.04～0.3%;
Efka-722 skimmer 0.4～1.2%;
400 order Rutile type Titanium Dioxides 5～10%;
325 order ground barium sulfates 15～20%;
400 order talcum powder 15～20%;
Carbon black 0.1～0.5%;
881-B organobentonite 0.1～1%;
Each weight percentages of components sum is 100% in the A liquid;
Each weight percentages of components is in the B liquid:
Polymeric amide EU8235 epoxy hardener 75～85%;
YLENE 10～15%;
Propyl carbinol 5～10%;
Each weight percentages of components sum is 100% in the B liquid;
During use, A liquid and B liquid are mixed coating, the weight percent of A liquid in coating is 80～90%, solidify to form coating through normal temperature.
2. the described petroleum storage tank inwall of claim 1 is used the solventless epoxy coating method of manufacture, it is characterized in that:
Add E-51 epoxy resin and butylglycidyl ether in the container in proportion; Mix; Under agitation add KH-560 silane coupling agent, ALCOPHOR827 protection against corrosion auxiliary agent, BYK-085 flow agent, Efka-722 skimmer then successively in proportion; Mix; Then under agitation add 400 order Rutile type Titanium Dioxides successively in proportion, 325 order ground barium sulfates, 400 order talcum powder, carbon black, 881-B organobentonite are promptly processed the A liquid in this coating with grinding 0.5h with sand mill behind the impeller high-speed stirring 0.5h; Polymeric amide EU8235 epoxy hardener, YLENE and propyl carbinol are added in another container in proportion, mix the B liquid of promptly processing in this coating with impeller; During use, A and B liquid mixed in proportion process solventless epoxy coating.
CN 201110248572 2011-08-26 2011-08-26 Solvent-free epoxy coating for inner wall of petroleum storage tank and preparation method Active CN102382548B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103756508A (en) * 2014-01-08 2014-04-30 上海麦加涂料有限公司 Method for preparing environment-friendly coating for inner surface of container
CN103788830A (en) * 2014-01-20 2014-05-14 南通华新环保设备工程有限公司 Acid and alkali resistant coating for stirring equipment and preparation method thereof
CN104710910A (en) * 2015-03-27 2015-06-17 上海灿达建材科技有限公司 Solvent-free medium coating and manufacturing method thereof
CN104927565A (en) * 2015-05-29 2015-09-23 大禹伟业(北京)国际科技有限公司 Waterproof solvent-free epoxy resin coating in drinking water project and construction method thereof
CN105949961A (en) * 2016-07-07 2016-09-21 张学健 Corrosion-resistant coating applied to red wine fermentation tanks
CN109913081A (en) * 2017-12-13 2019-06-21 深圳市百安百科技有限公司 A kind of solvent-free and high temperature-resistant anticorrosive paint for crude oil storage tank

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US5229438A (en) * 1989-12-01 1993-07-20 Mitsui Petrochemical Industries, Ltd. Two-component epoxy resin compositions
CN1492016A (en) * 2002-10-24 2004-04-28 张晓广 Anti-corrosion paint porticularly for petroleum storage tank and equipment
CN101074338A (en) * 2006-05-18 2007-11-21 中国石油天然气集团公司 Acid-alkali-corrosive-resisting oil-pipe coating and its production
US20090042036A1 (en) * 2006-03-09 2009-02-12 Chugoku Marine Paints, Ltd. High-solid anticorrosive coating composition
CN101942258A (en) * 2009-07-08 2011-01-12 中国石油天然气集团公司 Solvent-free epoxy paint for steel roasted elbow and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5229438A (en) * 1989-12-01 1993-07-20 Mitsui Petrochemical Industries, Ltd. Two-component epoxy resin compositions
CN1492016A (en) * 2002-10-24 2004-04-28 张晓广 Anti-corrosion paint porticularly for petroleum storage tank and equipment
US20090042036A1 (en) * 2006-03-09 2009-02-12 Chugoku Marine Paints, Ltd. High-solid anticorrosive coating composition
CN101074338A (en) * 2006-05-18 2007-11-21 中国石油天然气集团公司 Acid-alkali-corrosive-resisting oil-pipe coating and its production
CN101942258A (en) * 2009-07-08 2011-01-12 中国石油天然气集团公司 Solvent-free epoxy paint for steel roasted elbow and preparation method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103756508A (en) * 2014-01-08 2014-04-30 上海麦加涂料有限公司 Method for preparing environment-friendly coating for inner surface of container
CN103756508B (en) * 2014-01-08 2016-05-04 上海麦加涂料有限公司 A kind of preparation method of the environmental protection coating material for container inner surface
CN103788830A (en) * 2014-01-20 2014-05-14 南通华新环保设备工程有限公司 Acid and alkali resistant coating for stirring equipment and preparation method thereof
CN104710910A (en) * 2015-03-27 2015-06-17 上海灿达建材科技有限公司 Solvent-free medium coating and manufacturing method thereof
CN104927565A (en) * 2015-05-29 2015-09-23 大禹伟业(北京)国际科技有限公司 Waterproof solvent-free epoxy resin coating in drinking water project and construction method thereof
CN104927565B (en) * 2015-05-29 2017-09-29 大禹伟业(北京)国际科技有限公司 Water proof type solventless epoxy resin coating and its construction method in drinking water project
CN105949961A (en) * 2016-07-07 2016-09-21 张学健 Corrosion-resistant coating applied to red wine fermentation tanks
CN109913081A (en) * 2017-12-13 2019-06-21 深圳市百安百科技有限公司 A kind of solvent-free and high temperature-resistant anticorrosive paint for crude oil storage tank

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